PDTD123YUF

Overview

The PDTD123YUF is an NPN Resistor-Equipped Transistor (RET) from the PDTD1xxxU series, housed in a SOT323 (SC-70) surface-mounted plastic package. It features built-in bias resistors with R1 at 2.2 kΩ and R2 at 10 kΩ. The device supports a collector-emitter voltage of 50 V and an output current of 500 mA. Key electrical characteristics include a DC current gain (hFE) minimum of 70 at 50 mA, a collector-emitter saturation voltage maximum of 100 mV at 50 mA, and a transition frequency of 225 MHz. It operates within an ambient temperature range of -55 °C to +175 °C.

Feature Summary

• Built-in bias resistors simplify circuit design and reduce component count
• AEC-Q101 qualified for automotive applications
• High temperature capability up to 175 °C junction temperature
• Cost-saving alternative to standard BC807 or BC817 series transistors

Applications

• Digital applications in automotive and industrial segments
• Controlling IC inputs
• Switching loads

Procurement Notes

Verify the specific suffix 'F' against official Nexperia documentation to confirm reel packaging specifications. Ensure the ordering code matches the required tape-and-reel format for automated assembly processes. Cross-reference the marking code ZS* on the component body to validate authenticity and traceability during incoming inspection.

Selection Notes

Select this component when a compact NPN solution with integrated base biasing is required. The 2.2 kΩ input resistor suits moderate drive currents, while the 10 kΩ base-emitter resistor ensures reliable turn-off. Verify that the 500 mA output current rating meets the load requirements and that the SOT323 package footprint aligns with the PCB layout constraints.

Part Context

This part belongs to the PDTD1xxxU family of NPN resistor-equipped transistors. It shares the same SOT323 package and general electrical profile as variants like PDTD123EU but differs in internal resistor values. The PNP complement for this series is PDTB123YU. The 'U' designation indicates the SC-70/SOT323 package style.

Replacement Considerations

PDTD123EU serves as a functional substitute within the same series, sharing identical voltage and current ratings despite differing internal resistor values.